From 242abbbfea38515e6f5e048399a216b88cce8224 Mon Sep 17 00:00:00 2001
From: ayaka <ayaka@soulik.info>
Date: Sun, 29 Aug 2021 16:05:17 +0800
Subject: [PATCH] dll/wrap: fix build for glibc 2.33

I don't think I need the step that converting to legacy struct.

Signed-off-by: ayaka <ayaka@soulik.info>
---
 dll/common_includes.h |  3 +-
 dll/wrap.cpp          | 67 +++++++++++++++++++++++++++++++++++++++----
 2 files changed, 63 insertions(+), 7 deletions(-)

diff --git a/dll/common_includes.h b/dll/common_includes.h
index 4dc55d1..f15f49e 100644
--- a/dll/common_includes.h
+++ b/dll/common_includes.h
@@ -113,7 +113,6 @@ inline std::wstring utf8_decode(const std::string &str)
     #include <sys/ioctl.h>
     #include <sys/socket.h>
     #include <sys/mount.h>
-    #include <sys/stat.h>
     #include <sys/statvfs.h>
     #include <sys/time.h>
 
@@ -190,4 +189,4 @@ inline std::wstring utf8_decode(const std::string &str)
 
 #define LOBBY_CONNECT_APPID ((uint32)-2)
 
-#endif//__INCLUDED_COMMON_INCLUDES__
\ No newline at end of file
+#endif//__INCLUDED_COMMON_INCLUDES__
diff --git a/dll/wrap.cpp b/dll/wrap.cpp
index 50defc7..7cabf7c 100644
--- a/dll/wrap.cpp
+++ b/dll/wrap.cpp
@@ -25,6 +25,7 @@
 // Nothing to be done here
 #else
 #define STEAM_API_FUNCTIONS_IMPL
+
 #include "base.h"
 #include "dll.h"
 
@@ -34,6 +35,26 @@
 const char *STEAM_PATH;
 size_t STEAM_PATH_SIZE;
 
+#ifndef __x86_64__
+# define _STAT_VER_LINUX_OLD    1
+# define _STAT_VER_KERNEL       1
+# define _STAT_VER_SVR4         2
+# define _STAT_VER_LINUX        3
+# define _MKNOD_VER_LINUX       1
+# define _MKNOD_VER_SVR4        2
+#else
+# define _STAT_VER_KERNEL       0
+# define _STAT_VER_LINUX        1
+# define _MKNOD_VER_LINUX       0
+#endif
+#define _STAT_VER               _STAT_VER_LINUX
+#define _MKNOD_VER              _MKNOD_VER_LINUX
+
+/* From kernel_stat.h It help me save some condition  */
+#define XSTAT_IS_XSTAT64     1
+#define STATFS_IS_STATFS64   __STATFS_MATCHES_STATFS64
+#define STAT_IS_KERNEL_STAT  1
+
 // Returns a '/' terminated absolute path to the steam folder in user's home,
 // root is returned if env home is not set
 const char *get_steam_path()
@@ -290,7 +311,16 @@ STEAMAPI_API int __wrap_access(const char *path, int mode)
 STEAMAPI_API int __wrap___xstat(int ver, const char * path, struct stat * stat_buf)
 {
     const char *path_lowercased = lowercase_path(path, false, false);
-    int result = __xstat(ver, path_lowercased, stat_buf);
+    int result;
+
+    switch (ver) {
+    case _STAT_VER_KERNEL:
+        result = stat(path_lowercased, stat_buf);
+        break;
+    default:
+        result = EINVAL;
+    }
+
     if (path_lowercased != path) {
         free((void *)path_lowercased);
     }
@@ -305,7 +335,16 @@ STEAMAPI_API int __wrap_stat(const char * path, struct stat * stat_buf)
 STEAMAPI_API int __wrap___lxstat(int ver, const char * path, struct stat * stat_buf)
 {
     const char *path_lowercased = lowercase_path(path, false, false);
-    int result = __lxstat(ver, path_lowercased, stat_buf);
+    int result;
+
+    switch (ver) {
+    case _STAT_VER_KERNEL:
+        result = lstat(path_lowercased, stat_buf);
+        break;
+    default:
+        result = EINVAL;
+    }
+
     if (path_lowercased != path) {
         free((void *)path_lowercased);
     }
@@ -350,7 +389,16 @@ STEAMAPI_API DIR *__wrap_opendir(const char *path)
 STEAMAPI_API int __wrap___xstat64(int ver, const char *path, struct stat64 *stat_buf)
 {
     const char *path_lowercased = lowercase_path(path, false, false);
-    int result = __xstat64(ver, path_lowercased, stat_buf);
+    int result;
+
+    switch (ver) {
+    case _STAT_VER_KERNEL:
+        result = stat64(path_lowercased, stat_buf);
+        break;
+    default:
+        result = EINVAL;
+    }
+
     if (path_lowercased != path) {
         free((void *)path_lowercased);
     }
@@ -360,7 +408,16 @@ STEAMAPI_API int __wrap___xstat64(int ver, const char *path, struct stat64 *stat
 STEAMAPI_API int __wrap___lxstat64(int ver, const char *path, struct stat64 *stat_buf)
 {
     const char *path_lowercased = lowercase_path(path, false, false);
-    int result = __lxstat64(ver, path_lowercased, stat_buf);
+    int result;
+
+    switch (ver) {
+    case _STAT_VER_KERNEL:
+        result = lstat64(path_lowercased, stat_buf);
+        break;
+    default:
+        result = EINVAL;
+    }
+
     if (path_lowercased != path) {
         free((void *)path_lowercased);
     }
@@ -448,7 +505,7 @@ STEAMAPI_API int __wrap_link(const char *path1, const char *path2)
 STEAMAPI_API int __wrap_mknod(const char *path, mode_t mode, dev_t dev)
 {
     const char *path_lowercased = lowercase_path(path, true, true);
-    int result = __xmknod(1, path_lowercased, mode, &dev);
+    int result = mknod(path_lowercased, mode, dev);
     if (path_lowercased != path) {
         free((void *)path_lowercased);
     }